Optical instrument



FIG. 1 is a left side elevational view of an optical instrument according to a first embodiment of the present invention.

FIG. 2 is a right side elevational view of the optical instrument of FIG. 1.

FIG. 3 is a front elevational view of the optical instrument of FIG. 1.

FIG. 4 is a rear elevational view of the optical instrument of FIG. 1.

FIG. 5 is a top plan view of the optical instrument of FIG. 1.

FIG. 6 is a bottom plan view of the optical instrument of FIG. 1.

FIG. 7 is a three quarter view of the optical instrument of FIG. 1.

FIG. 8 is a left side elevational view of an optical instrument according to a second embodiment of the present invention.

FIG. 9 is a right side elevational view of the optical instrument of FIG. 8.

FIG. 10 is a front elevational view of the optical instrument of FIG. 8.

FIG. 11 is a rear elevational view of the optical instrument of FIG. 8.

FIG. 12 is a top plan view of the optical instrument of FIG. 8.

FIG. 13 is a bottom plan view of the optical instrument of FIG. 8; and,

FIG. 14 is a three quarter view of the optical instrument of FIG. 8.

The broken line immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines are directed to environment and are for illustrative purpose only; the broken lines form no part of the claimed design. 

The ornamental design for an optical instrument, as shown and described. 